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80 SAFETY
Hill Start Assist (HSA)
The Hill Start Assist (HSA) system is designed to
assist the driver when starting a vehicle from a
stop on a hill. HSA will maintain the level of
brake pressure the driver applied for a short
period of time after the driver takes his foot off
the brake pedal. If the driver does not apply the
throttle during this short period of time, the
system will release brake pressure and the
vehicle will roll down the hill. The system will
release brake pressure in proportion to the
amount of throttle applied as the vehicle starts
to move in the intended direction of travel.
HSA Activation Criteria
The following criteria must be met in order for
HSA to activate:
The vehicle must be stopped.
The vehicle must be on a 5% grade or greater
hill.
The gear selection matches vehicle uphill direc-
tion (i.e., vehicle in NEUTRAL (N) (manual trans-
mission), vehicle facing uphill is in forward
gear; vehicle backing uphill is in REVERSE (R)
gear).
Disabling/Enabling HSA
If you wish to turn the HSA system on or off, this
can be done through the instrument cluster
display menu. Refer to “Instrument Cluster
Display” in “Getting To Know Your Instrument
Panel” for further information.
Traction Control System (TCS)
The Traction Control System (TCS) monitors the
amount of wheel spin of each of the driven
wheels. If wheel spin is detected, brake pres-
sure is applied to the slipping wheel(s) and
engine power is reduced to provide enhanced
acceleration and stability. A feature of the TCS
system, Brake Limited Differential (BLD), func-
tions similar to a limited slip differential and
controls the wheel spin across a driven axle. If
one wheel on a driven axle is spinning faster
than the other, the system will apply the brake
of the spinning wheel. This will allow more
engine torque to be applied to the wheel that is
not spinning. This feature remains active even if
TCS and ESC are in the Partial Off mode or Full
Off mode. Refer to “Electronic Stability Control
(ESC)” in this section for further information.
WARNING!
When in “Partial Off” mode, the TCS
functionality of ESC (except for the limited
slip feature described in the TCS section)
has been disabled and the “ESC Off
Indicator Light” will be illuminated. When in
“Partial Off” mode, the engine power
reduction of TCS is disabled, and the
enhanced vehicle stability offered by the
ESC system is reduced.
WARNING!
There may be situations on minor hills with a
loaded vehicle, or while pulling a trailer,
when the system will not activate and slight
rolling may occur. This could cause a
collision with another vehicle or object.
Always remember the driver is responsible
for braking the vehicle.
20_BG_OM_EN_US_t.book Page 80
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